Magnus Naeslund(k) wrote:
But tmpfs seems to get really slow when it has to swap out stuff from
tmp to a 80 gb swap partition, much slower than just writing a file
to the ext3 fs. Maybe this is a known thing, and easily tuned, but
I've not seen any solutions when googling around.
This is a SWAG ( Silly Wild Ass Guess ), but maybe tmpfs isn't mapping
the files sequentially in ram, or is otherwise doing something to
prevent proper swap clustering and read ahead?
Somehow I think I'm missing something here, maybe we're not supposed
to use tmpfs in this way at all? What more information can I supply
to narrow down the problem? Is there any secret knobs that I can use
to tune swap performance?
You aren't supposed to be using tmpfs in this way at all ;)
tmpfs is meant to hold small files that will only exist for a short
time, or do not need to persist after a reboot. Keep your big data
files on a normal filesystem, and let the kernel worry about caching the
most frequently accessed parts.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
